A general rule is to replace a spark plug wire if resistance is over:

Technician A says that in an ignition system, the voltage supplied to the coil during starting is battery voltage. Technician B says the coil uses electromagnetic induction to create high voltage. Who is right?

A Front Wheel Drive (FWD) vehicle with an automatic transaxle has excessive vibration. Technician A says that the vibration could be caused by worn engine/transaxle mounts. Technician B says that the vibration could be caused by a misaligned engine/transaxle subframe. Who is right?

A technician suspects that a faulty camshaft sensor causes a driveability complaint. The sensor is equipped with a three-wire connector. What type of sensor is this?

All of the following can cause a problem in the Hydro-boost system EXCEPT:

Technician A says that if a wire is getting too hot, it's a sign of higher-than-normal current flowing through. Technician B says the wire would heat up if some of the individual strands are broken inside the wire insulation. Who is right?

Technician A says electrical connectors can be disconnected with the ignition switch ON, as long as the technician is using a ground strap. Technician B says when welding on a vehicle, the technician needs to use a static wrist strap. Who is right?

Technician A says the thermostat maintains maximum engine operating temperature. Technician B says if the engine continuously runs hot, install a cooler thermostat. Who is right?

A vehicle equipped with a MacPherson strut suspension is in the repair shop for new tires and an alignment. The technician noticed that the vehicle has some play in the lift-side inner tie-rod. What should the technician tell the customer?

An engine is losing coolant, yet has no external leaks. Technician A says to run the engine and see if there is white smoke out of the exhaust. Technician B says to find out if the engine's emission system uses a catalytic converter before running the test above. Who is right?

LED bulbs can remain effective for up to how long depending on the size of the bulb and the conditions to which the bulb is exposed?

All of the following should be performed during a preliminary transmission inspection EXCEPT:

A smeary film on the windshield is an indication of:

Technician A says that all power should be removed from a circuit before testing the circuit with an ammeter. Technician B says that all power should be removed from a circuit before testing the circuit with an ohmmeter. Who is right?

How should ammeters be connected in a circuit to measure current flow?

What can happen if external power is present in a circuit when using an ohmmeter?

A Rear Wheel Drive (RWD) vehicle with a one-piece driveshaft has excessive driveshaft vibration during low speed acceleration. Which of the following is the MOST likely cause?

When replacing an integral hub/bearing assembly on a Front Wheel Drive (FWD) vehicle, all of the following must be removed EXCEPT:

The warning light on a vehicle with an anti-lock brake system lights when the vehicle is started. When the vehicle is moving, the light stays on. Which of the following could be the cause?

The driver of a vehicle with hydraulic brakes says the brake pedal is extremely hard when stopping. Technician A says the problem could be in the power assist system. Technician B says the problem is most likely a weak or broken brake shoe return spring. Who is right?

Technician A says that DOT 3 brake fluid has a higher boiling point than DOT 4 brake fluid. Technician B says that DOT 5 brake fluid should not be used in a vehicle with ABS. Who is right?

What is the dry boiling point of DOT 4 brake fluid?

Which brake fluid type is silicone-based?

Why is DOT 5 brake fluid not recommended for ABS systems?

Technician A says Diesel Exhaust Fluid (DEF) has no effect on vehicle performance. Technician B says a high-rate battery discharge test is the same as a load test. Who is right?

All of the following are procedures for removing air from a hydraulic system EXCEPT:

A vehicle is leaking hydraulic fluid from a brake line. Technician A says a short splice can be used to repair the line. Technician B says if the line has not drained the master cylinder, the system does not need to be bled. Who is right?

A vehicle with hydraulic brakes has been diagnosed with contaminated brake fluid. Of the following, what would be the proper procedure in the repair process?

Technician A says the pressure differential switch activates a light on the dash warning the driver of a brake fluid pressure loss. Technician B says the combination valve activates a light on the dash warning the driver of a brake fluid pressure loss. Who is right?

All of these could cause tire wear if not within manufacturer's specification EXCEPT:

The ball joints on a MacPherson strut suspension are being replaced. Technician A says that the coil spring compressor should be installed before separating the control arm and spindle. Technician B says that the wheel alignment should be checked after the ball joints have been replaced. Who is right?

Technician A says that a vehicle with a TPMS can be identified by looking for a TPMS indicator on the instrument panel during the Key On Engine Off bulb check. Technician B says that all vehicles with TPMS have metal tire valve stems and this feature can be the identifier. Who is right?

A vehicle's suspension system is being checked for radial and axial tolerances. Technician A says the ball joints should be checked. Technician B says the idler arm should be checked. Who is right?

What is the primary function of a fuel injection system in an automotive engine?